N-Boc-反式-4-氨基-L-脯氨酸甲酯

(1S,4S)-2-BOC-2,5-二氮双环[2.2.1]庚烷

(2S)-4-氧代-1-(9-苯基芴基)-脯氨酸甲酯

(2S,4S)-4-乙酰基硫代-2-羟基甲基-1-吡咯烷羧酸-2-丙酯

1-O-tert-butyl 2-O-methyl (2S,4S)-4-(4-nitrobenzoyl)oxypyrrolidine-1,2-dicarboxylate